mineral

Polished green-inclusion stone, likely chlorite-included quartz

Quartz (SiO₂) with chlorite inclusions; exact identification is uncertain from the photograph

AI-generated identification · may be incorrect

Hardness about 7 for quartz; dark gray to translucent with vivid green internal patches, vitreous luster, and no obvious cleavage. The rounded, glossy surface indicates tumbling or polishing; specific gravity is approximately 2.65 for quartz.

Identified September 2, 2026More mineral →

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At a glance

Common name: Polished green-inclusion stone, likely chlorite-included quartz
Scientific name: Quartz (SiO₂) with chlorite inclusions; exact identification is uncertain from the photograph
Category: mineral
Identified: September 2, 2026
Method: Standard

AI Estimated Value

About $5–$30 for a small common tumbled specimen; $30–$150 or more for unusually transparent material with attractive, well-defined inclusions.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Quartz crystallized from silica-rich hydrothermal fluids, while chlorite formed during low- to moderate-temperature alteration and became enclosed in the quartz. Such specimens commonly formed in veins associated with metamorphic or igneous rocks, generally at no single determinable age.

Uses & applications

Used primarily as a lapidary stone, cabochon, or collector specimen; not typically used industrially in this polished form. Value depends strongly on transparency, color contrast, pattern, and finish.

Geological facts

Green inclusions may also represent fuchsite, epidote, or actinolite, which can look similar in a photograph. A loupe, hardness test on an inconspicuous edge, and specific-gravity or mineralogical testing would improve identification.

Field identification & locations

Common sources include Brazil, India, Madagascar, and parts of the Alps. Quartz’s glassy luster and hardness, combined with enclosed green fibrous or flaky inclusions, help distinguish it from solid green minerals.